Deepthroating a cock is something you have to learn by practicing, everybody has a gag reflex, its ust a matter of letting your throat getting used to an object. For a beginning deepthroater its better to start with a dildo or with a sausage. An expert can even swallow the cumload while deepthroating. This woman is kind of between them, its still a bit messy but shes going into the right direction.